US PATENT SUBCLASS 234 / 13
WITH MEANS TO IMPOSE PROGRAMMED CONTROL OF AUXILIARY-OPERATION

Current as of: June, 1999
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234 /   HD   SELECTIVE CUTTING (E.G., PUNCHING)

13WITH MEANS TO IMPOSE PROGRAMMED CONTROL OF AUXILIARY-OPERATION {6}
14  DF  .~> Embodying means to change code
15  DF  .~> Embodying means to afford choice of programs
16  DF  .~> Embodying means to shift control between plural input sources {1}
18  DF  .~> Embodying means to effect selection or shift or skip of field {1}
20  DF  .~> For start or stop of control from given input source
21  DF  .~> For stopping after predetermined number of operations

DEFINITION

Classification: 234/13

(under the class definition) Device which performs a plurality of operations in sequence and which comprises means effective at a predetermined point in said sequence to modify or render effective or ineffective certain machine controlling impulses other than those impulses which directly control the selection of tools.

(1) Note. For example, the changeover from one code system to another, and the shift of control from one input source to another, are merely preparatory to subsequent tool selection operations, hence they are regarded as "auxiliary-operations", rather than as constituting direct control of tool selection. The term auxiliary-operation* implies any action, operation, or change of condition of a device or part thereof, other than the actual selection of tools for cutting or noncutting action in any cycle of tool actuation. For further examples of auxiliary-operations, see Definitions of Terms.

(2) Note. The term "programmed" implies that any of the actions or changes of conditions referred to in (1) Note, above is the result of a prearranged timing schedule and thus occurs at one or more fixed points in the timed sequence of a machine operation, as against any random time dependent upon the receipt of signals from an external source (e.g., actuation of a keyboard by an operative), or upon the occurrence of a condition which is not definitely related to any particular cycle of operation of the machine (e.g., the occurrence of a misfeed overload, or other malfunction).

(3) Note. Programming may be effected by sensing a card, tape, or other medium while at rest or while progressing through the machine. Such a card or tape is distinguishable from a "pattern" card or tape by the fact that a programming medium controls auxiliary-operations of the machine. If it further contains tool-selection-controlling data, it is a combined program-pattern element, and the programming feature would prevail in the original classification of a patent to the combination.

(4) Note. Certain conventional features commonly found in card punches, namely: the so-called "last-column contact" circuits, or automatic card-feed and card-eject devices in general, are not deemed as of sufficient interest in this

class to warrant cross-referencing into subclass 13 unless included in the claimed invention.